Mention backups in the main guide
Mention backups in the main guide

ibmibmibm/beets,shamangeorge/beets,beetbox/beets,ibmibmibm/beets,shamangeorge/beets,shamangeorge/beets,beetbox/beets,jackwilsdon/beets,sampsyo/beets,ibmibmibm/beets,jackwilsdon/beets,jackwilsdon/beets,beetbox/beets,sampsyo/beets,SusannaMaria/beets,jackwilsdon/beets,ibmibmibm/beets,SusannaMaria/beets,sampsyo/beets,SusannaMaria/beets,SusannaMaria/beets,sampsyo/beets,shamangeorge/beets,beetbox/beets